Unit 4 Section A Grammar Focus课件- 2025-2026学年英语人教版（2024）八年级上册

该初中英语课件聚焦形容词和副词最高级的构成规则及用法，通过Free talk的三个递进问题（从原级到比较级再到最高级）搭建学习支架，帮助学生从已知的比较级自然过渡到最高级的学习，形成连贯的知识脉络。 其亮点在于通过例句观察归纳（3a分析黑体词）培养思维品质，任务型练习（3b、3c短文填空）提升语言能力，对比表格梳理比较级与最高级异同培养学习能力。融入银杏古树短文（3c）渗透文化意识，学生能在真实语境中运用语法，教师可借助清晰结构和多样练习提高教学效率。

Section A Grammar Focus Unit 4 Amazing Plants and Animals To master the formation rules of superlative degrees for adjectives and adverbs through observation and induction; 01 To correctly use superlative forms in both spoken and written English. 02 学习目标 Free talk Which animal runs fast？ Which runs faster? Which runs the fastest? 新课讲授 3a Read the sentences and notice the words in bold. The blue whale is the largest and the heaviest animal in the world. The biggest land animal in the world is the African elephant. The cheetah runs the fastest among all land animals. I think the most useful plant in the world is bamboo. It is perhaps the most interesting plant in the world. Superlatives adjective 形容词 adverb 副词 Write down the original form (原形）. large-the largest, heavy-the heaviest, big-the biggest, fast-the fastest, useful-the most useful, interesting-the most interesting What are the ways to form a superlative adjective or adverb? smart—smartest fast—fastest high-the highest short—shortest fresh—freshest 一般在词尾加est close-the closest late—latest nice-the nicest big—biggest thin—thinnest fat—fattest hot--hottest funny—funniest friendly- friendlier lazy—laziest early--earliest 以辅音字母加“y”结尾的双音节词,先改“y”为“i”再加est 以字母e结尾的词,加st 重读闭音节词只有一个辅音字母时,双写辅音字母,加est 单音节词和部分双音节词 What are the rules to change the superlatives? 多音节词和部分双音节词 多音节词和部分双音节词,在前加 most comfortable– most comfortable popular—most popular carefully—most carefully quickly- most quickly clearly- most clearly quietly-most quietly -iest -est most -st -末尾辅音est 2. 以e结尾的单音节词加-r/-st cute-cutest; large-largest 1 .一般情况下的单音节词 fast-fastest; long-longest heavy--heaviest; happy--happiest 3. 以辅音字母加y结尾的词 4. 重读、闭音节、1个辅音字母结尾 big-biggest; thin-thinnest most useful;most interesting 5. 部分双音节词 Summary 原级 比较级 最高级 good/well better best many/ much more most bad/ ill/ badly worse worst old older/elder oldest/eldest far farther/further farthest/furthest 常用的不规则形容词比较级和最高级变化形式 The blue whale is the largest and the heaviest animal in the world. The biggest land animal in the world is the African elephant. The cheetah runs the fastest among all land animals. I think the most useful plant in the world is bamboo. It is perhaps the most interesting plant in the world. 通常用于三者或三者以上的范围，of/ in/during 说明比较范围 形容词的最高级前必须有the，副词的最高级前可以省略the How do we use superlatives ? 副词 最高级的常用句型（一） ◆ “主语+ be+ the+形容词最高级+in/of 短语”意为 “……是……中最……的”。 ◆ “主语+实义动词（+the）+副词最高级+in/of 短语”意为 “……是……中最……的”。 ◆ “主语+be+ one of the+形容词最高级+可数名词复数+in/of 短语”意为“……是……中最……的……之一”。 My mother is the busiest one in my family. The Yangtze River is the longest river in China. Tom works (the) hardest in Class 3. Tianjin is one of the biggest cities in China. 最高级的常用句型（二） ◆ “疑问词+ be+ the+形容词最高级，甲、乙or丙？”用于三个或三个以上的人或事物之间的比较。 ◆ “疑问词+助动词+主语+动词原形（+the)+副词最高级，甲、乙or丙？” ◆ “主语+be + the+序数词+形容词最高级+可数名词单数+in/of短语”意为“……在…… 中是第几……的……”。 Who is the tallest, Tom, Kate or Bill? Which city do you like best, Beijing, Shanghai or Guangzhou? The Yellow River is the second longest river in China. Comparatives & Superlatives the similarities the differences 适用对象 变化规则 比较级 最高级 比较级 最高级 适用范围 标志词 adj. adv. 两者 ≥三者 than a little a lot much even the in of Discuss preferences (偏好) . Make comparisons. -est -st -est 双写est most -er -r -ier 双写er more 3b Complete the sentences with the superlative forms of the words in brackets. 1. Among all animals, I love pandas the best. I think they are _________ (cute) animals in the world. 2. Which do you think is __________________ (beautiful), the rose, the peony, or the lotus flower? 3. Look at that butterfly! It has ________________ (colourful) wings. 4. Which animal jumps ___________ (high), the lion, the monkey, or the tree frog? 5. The elephant birds were ___________ (large) and _________ (heavy) birds ever on earth. Some could stand up to three metres tall and weigh up to 860 kg. the cutest the most beautiful the most colourful (the) highest the largest heaviest Complete the passage with the superlative forms of the words in the box. ancient beautiful common good popular The ginkgo tree is one of ________________ living trees on earth. Ginkgo trees first appeared over 200 million years ago. Chinese people love the ginkgo, as it is a symbol of hope and long life. Many Chinese believe that the old ginkgo tree in the Zhongnan Mountains in Shaanxi Province is ________________. This tree is over 1,400 years old. Thousands of tourists come to see it each year, especially in mid-October, as it is ____________ time to see it. The ginkgo tree is one of _________________ trees in streets, parks, and gardens across China. When autumn comes, one of _____________ activities is to take a walk under ginkgo trees. People believe the bright yellow leaves can bring joy to their heart. the most ancient the most beautiful the best the most common 3c the most popular What’s amazing about the ginkgo tree? Ginkgo trees first appeared . It is one of ________________ living trees on earth. People think the old ginkgo tree in the Zhongnan Mountains in Shaanxi Province is ________________. It is one of________________trees in streets, parks and gardens across China. Chinese people love the ginkgo, as it is a symbol of _______________. People believe the bright yellow leaves can _______________. the most ancient the most beautiful the most common hope and long life bring joy to their heart over 200 million years ago. /əˈpɪr/ /ˈeɪnʃənt/ /ˈkɑːmən/ a living fossil We learn: 1. vocabulary: land, African, rose, peony, lotus, butterfly, weigh ... 2. sentence patterns: Which do you think is ..., the rose, the peony, or the lotus flower? We can: master the usage of superlative. 课堂总结 当堂检测 1.Hainan is a very large Island. It is the second _________ island in China. (large) 2.Our teacher is as ______ as before. (busy). 3.He is __________________ among us. (careful) 4.Li Lei jumped far ________ than Jim. (far) 5.The busier he is, the ________ he feels. (happy) 6.Edison was_____________________________in the world. (最伟大的发明家之一） busy the most careful farther happier largest 一、用所给单词的适当形式填空。 one of the greatest inventors $$